areaaverage

areaaverage

Average cell value of within an area

Result = areaaverage(expression, areaclass)
expression
spatial scalar
areaclass
spatial boolean, nominal, ordinal
Result
spatial scalar

Operation

areaclass Identifies the class to which a cell belongs: cells with corresponding values on areaclass together form a separate class. For each separate class the expression values of the cells belonging to that class are averaged. This average value is assigned to all cells belonging to that class. This is done for all classes and saved as Result.

Notes

A cell with missing value on areaclass will result in a missing value on Result at the corresponding cell.

Group

This operation belongs to the group of Area operators

Examples

  1. • pcrcalc
    binding
    Result = Result.map;
    Class = Class.map;
    Expr = Expr.map;
    initial
    report Result = areaaverage( Expr, Class);

    • python
    Class = readmap(“Class.map”)
    Expr = readmap(“Expr.map”)
    Result = areaaverage( Expr, Class)
    Result.map Class.map Expr.map
    _images/areaaverage_Result.png _images/areaarea_Class.png _images/areamaximum_Expr.png

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